Nokia
Phone locks, not responding

My name is teetu i gave my mobile nokia 3500c to nokia care center at Punjab Amtisar.

I m having problem of locks and not responce from mobile but now the workers at care station are not giving me back at right time. I m having lots of problem without mobile plz make it repair as soon as posable.details of my phone

IMEI--352048021476091

JOB SHEET NUMBER IS&067343506/080628/10

mobile number is &-09888323093